Friction draft-rigging.



C. L. BUNDY.

FRICTION DRAFT RIGGING.

APPLIOATION FILED JULY 27. 1909.

Patented Nov. 1,1910.

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C. L. BUNDY.

FRIGTION DRAFT BIGGING.

APPLIoA'rIoN FILED JULY 21, 190s.

Patented Nov. 1,1910

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cYRUs L'. BUNDY,

OF KINGSLAND, NEW J E RSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO WILLIAM H. MINER, 0F CHICAGO, ILLINOIS.

FRICTION DRAFT-RIGGING.

Specification of Letters Patent.

" Application filed July 27, 1909.

To all whom it 'may concern:

Be it known that I, CYRUS L. B'UNDY, a citizen ofthe United States, residing in Kingsland, in theY countyV of Bergen and State of NeWJersey, have invented a new andv useful Improven'ient in Friction Draft- Rigging, of which the following is a specification. i

My invention relates to improvements in friction draftv rigging forfrailway ears.

4My' invention consists in the novel construction ofparts and devices and in the novel combinations of parts and devices herein shown and-described, and more pai'- ticnlarly specified in the claims;

In the. accompanying drawing forming a part of this specification, Figure 'l is a side elevation partly in vertical longitudinal section of a friction draft rigging embodying my invention. Fig. 2 is a plan view 'partly in horizontal section. Fig. 23 is a vertical cross' section on line 3-#3 of Fig. 1.` Fig. 4- s a detail perspective view of the 'internlediate friction block and Fig. 5 is a detail perspective view of one of the end friction blocks or wedge faced followers and Fig. 6 is a detail vertical Section on line (iS-(5 of Fig. 2.

In the drawing, A represents the `center sills or draft membersof the car to which the draftrigging is applied, A1 the front sill and A2 t-he carry-iron.

B is the coupler draw-bar, B" the draft yoke, and C the draft lugs or stop members secured to thev draft sills A, preferably by rivets C1.

D D1 are front and' rear longitudinally movable friction blocks, preferably formed integral with and serving also as front and rear followers and adapted to abut against the front and rear draft lugs or stop members and extending through the draft yoke after the manner of ordinary followers. The friction lblocks D have upright faces d to abut against the dran/bar or draft yoke and draft lugs or stop members and inclined or wedging friction faces Z1 which are in slid- 'mg frictional engagement with a transversely arranged and transversely and longitudinally movable intermediate friction block or wedge F whlch reacts against the transversely arranged and longitlulinally movable spring or springs E. The springs E are arranged upright and preferably below instead of above the draw-bar. The in- Patented Nov. 1, 1910.

serial No. 509,943.

termediate friction block F has its wedge faces f in sliding frictional engagement with the friction faces d* of the friction blocks D D. A spring seat plate F1 is preferably interposed between the Wedge or intern'iediate friction block F and the spring or springs F. At the outer end thereof the spring or springs E bear against a spring seat plate F2 which is supported by tension bolts or rods I-I which extend through and are secured to the friction plates or straps G which fit one on cach side of the upper member of the draft yoke and bear against and frictionally en-` gage t-he horizontal friction 'faces Z2 of the friction blocks D. These tension rods or bolts extend throligh longitl'ldinal Slots d in the friction blocks l) so that each of the friction blocks may reciprocate longitudinally in respect to the tension rods or bolts H and the frictionv plates or Straps G.

The draft rigging is removably supported in position between the draft sills by one or more removable guide plates K secured to the lower [langes of they draft sills A by removable bolts K1 having threaded nuts K2. The spring seat plate Fl against which the inner ends of the spring directly bear is preferably provided with a centering boss fl for the springs. The intermediate friction block F is preferably furnished with a recess or channel f to receive the adjacent limb of thc draft yoke.

ln operation, the intermediate friction block or wedge F. the springs E, tension bolts or rods ll and friction plates or straps (l more longitlulinally with the draw-bar to the extent of one half the movement thereof, oneol the combined follower and friction blocks l) being held stationary by its abutment against the draft lugs or stop members while the other has the same longitudinal movement with the drawbar lo the full extent of its movement.

1. In a friction draft rigging, the co1nbi nation with a dra\v-bar, draft yoke and stop members, of a pair of wedge faced friction followers extending through the draft yoke and engaging one, the draft volwy and the other tbe draw-bar. an intermediate wedge faced transversely arranged and transversely and longitudinally movable friction block, an upright spring actilnr at its inner end against said intermediate friet ion block, and tension rods extending through said i wedge faced follower, and a 1spring seat` i. plate supported by said rods and against which the outer. end of the spring bears, sub,

stantially as specified.

2. In a friction draft rigging, the combination with'a draw-bar,' draft yoke and stop members, of a pair of wedge faced followers, an intermediate friction block acting against said followers, a spring lacting aga-inst said intermediate block, friction straps .on each side of the draft 1foke bear' ing against the horizontalfriction faces of said'wedge faced followers, aspring seat plate against which the outer end of the spring bearsv and ten-sion rods connecting .said spring seat plate with said straps, substantially as specified.

3. In afriction draft rigging, the combination with a draw-bar, draft yoke and stop members, of a pair of wedge faced follow-v ers, an intermediate friction block acting against said followers, a spring `acting against said intermediate block, friction straps on each side of the draft yoke bearing against the horizontal friction faces of said wedge faced followers, a sprinO` seat plate against which'the outer end ofD the spring bears and tension rods connecting said spring seat plate with said friction straps, said 1nfriction termediate friction block, spring and fric` tion straps having a movement longitudinally with 'the draw-bar, substantially as specied. 4

'-1. In a friction draft rigging, the combination with'the draw-bar, draft yoke and stopmembers, of a pair of wedge faced friction followers extending through said yoke, and an intermediate friction wedge block, a spring acting against said wedge block, a plateA against which the outer'end -of the spring bears, and connections between said platev and said Wedge faced friction followers, substantially as specified.

` 5. Ina friction draft rigging, the combination with the draw-bar, draft yoke and stop members, of a pair of wedge faced friction followers extending through said yoke, and an intermediate friction wedge block, a spring actingv against 'said wedge block, a plate against which the outer end of the spring bears, friction straps, one on each` Hside of the draft yoke bearing against said friction followers, and connections between said plate and said friction straps, substantially as specified.

GYRUS L. BUNDY. Witnesses i EMIL SCHUMANN, CARL G. T. SGHUMANN 

